鼻中隔彎曲症を対象とした鼻腔空間内のCFD解析(流体工学,流体機械)

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タイトル別名
  • CFD Analysis for Nasal Cavity of Deflected Septum(Fluids Engineering)
  • 鼻中隔彎曲症を対象とした鼻腔空間内のCFD解析
  • ビ チュウカク ワンキョクショウ オ タイショウ ト シタ ビクウ クウカン ナイ ノ CFD カイセキ

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抄録

Recently, many Japanese suffer from paranasal sinusitis also known as empyema. One of the medical attendances for the paranasal sinusitis is a nebulizer treatment. The effectiveness of the nebulizer treatment has been confirmed until now. However, there are few researches that evaluated the treatment quantitatively, i.e., how many medicinal mist droplets deposit on inflammation areas inside a nasal cavity. This paper focused on a case-adult male, deflected septum, chronic paranasal sinusitis in left nasal and endoscope sinus surgery-and analyzed flow field inside a nasal cavity using computational fluid dynamics techniques. In addition, the paper also implemented medicinal mist droplet transportation analysis using gas-liquid two phase flow numerical model. From the analysis results, it is clear that (1) deflected septum significantly influences on medicinal droplet transportation, and then the effectiveness of nebulizer treatment, (2) narrow nasal cavity due to deflected septum reduces nasal cavity passage rate of medicinal droplets, and (3) air flow in the nasal cavity and transport phenomena of medicinal droplet is controllable by nebulizer inlet angle.

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